Patent · US Active

Coding and decoding of transform skipped blocks

US9794591B2 · kind B2 · utility

4Cited by

0References

12Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Jacob Ström · Stockholm, SE
Kenneth Andersson · Gävle, SE

Key dates

Filing date	Jan 25, 2017
Grant date	Oct 17, 2017
Priority date	—
Expiry date	Jan 25, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH03M7/4018
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Video encoder and decoder and methods therein for transform skipped encoding and decoding of blocks of pixels. The methods comprise a modified use of an existing context model associated with transform coefficients, for deriving contexts for a bitmask indicating which residual values (i.e., not transform coefficients), in a transform skipped residual block, that are greater than one. The methods are applicable to video coding schemes such as HEVC.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.